ECWCS parka. It's Gortex so you can wear it layered or not. Quite lightweight on it's own, and waterproof. There are many different variations, at a wide range of prices. I bought mine a couple years ago, for around $100. It has two slash pockets, a sleeve pocket and two huge internal "map" pockets.
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It's not that life is so short, it's that you're dead for so long.